| Bufo cognatus | Bufo cognatus |
| Bufotenin | Bufoténine |
| bug | punaise |
| Bug-Jargal | Bug-Jargal |
| Buganda | Buganda |
| Bugatti | Bugatti |
| Bugatti Automobiles SAS | Bugatti Automobiles SAS |
| Bugatti Circuit | Circuit Bugatti |
| bugbear | cauchemar |
| Buggier | Fou |
| Buggles | The Buggles |
| buggy | voiture d'enfant |
| Buggy the Clown | Baggy le clown |
| bughouse chess | Blitz à quatre |
| Bugia | Béjaïa |
| Bugis | Bugis |
| bugle | clairon |
| bugler | clairon |
| BugMeNot | BugMeNot |
| Bugojno | Bugojno |
| Bugs Bunny | Bugs Bunny |
| Bugsy | Bugsy |
| Bugsy Malone | Bugsy Malone |
| Bugsy Siegel | Bugsy Siegel |
| Bugun Liocichla | Garrulaxe des Bungun |
| Buguruslan | Bougourouslan |
| bugwort | cimicaire |
| Buhen | Bouhen |
| Buhl | Buhl |
| build | fabriquer |
| build castles in the air | bâtir des châteaux en Espagne |
| build up | s'accumuler |
| build up one's strength | prendre des forces |
| build-up | montée |
| builder | entrepreneur |
| Buildering | Grimpe urbaine |
| building | immeuble |
| building and loan association | société de crédit immobilier |
| building area | zone construite |
| building block | cube |
| building component | composant préfabriqué |
| building constructor | entrepreneur |
| building destruction | destruction de bâtiment |
| building industry | industrie du bâtiment |
| building land | zone constructible |
| building material | matériau de construction |
| Building materials | Matériaux de construction |
| building materials industry | industrie des matériaux de construction |
| Building owner | Entrepreneur en bâtiments |
| building permit | permis de construire |
| building planning | planification de la construction |
| Building promoter | Promoteur immobilier |
| building regulation | réglementation du bâtiment |
| building related illness | syndrome de l'immeuble insalubre |
| building restoration | restauration de bâtiment |
| building service | équipment du bâtiment |
| Building set | Jeu de construction |
| building site | chantier de construction |
| building site preparation | viabilisation |
| Building technique | Architecture |
| building technology | technologie du bâtiment |
| building trade | construction |
| building waste | déchet de construction |
| buildup | montée |
| Buildwas | Buildwas |
| built | bâti |
| built drainage system | système de drainage bâti |
| built environment | environnement bâti |
| built structure | structure bâtie |
| built to order | fait sur commande |
| built-in | encastré |
| built-up area | agglomération |
| Builth Wells | Llanfair-ym-Muallt |
| Buj | Parachute de palier |
| Buja | Buja |
| Bujanovac | Bujanovac |
| Bujinkan | Bujinkan |
| Bujumbura | Bujumbura |
| Buk | Fagus |
| Buka | Île Buka |
| Buka Entertainment | Île Buka |
| Buka Island | Île Buka |
| Bukavu | Bukavu |
| Bukhara | Boukhara |
| Bukhara Province | Boukhara |
| Bukharan Jews | Juifs de Boukhara |
| Bukharian Jews | Juifs de Boukhara |
| Bukidnon Woodcock | Bécasse de Bukidnon |
| Bukjeju County | Comté de Bukjeju |
| Bukka White | Bukka White |
| Buko | Boucle de vêtement |
| Bukoba | Bukoba |
| Bukovina | Bucovine |
| Bukovina Germans | Allemands de Bucovine |
| Bul | BUL |
| Bulat Okudzhava | Boulat Okoudjava |
| Bulava | Bulava |
| Bulawa | Bulava |
| Bulawayo | Bulawayo |
| bulb | ampoule |
| bulb cultivation | culture des bulbes |
